<!DOCTYPE html>
<html lang="en"  xmlns="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>登录</title>
</head>
<body>
  <form action="/doLogin" method="post" >
    账号:  <input name="username"/><br/>
    密码:  <input name="password" type="password"/><br/>
          <input name="url" type="hidden" th:value="${url}">
           <input type="submit" value="登录"><br/>
  </form>
</body>
</html>